OFFSET

1,5

COMMENTS

In other words, for n > 0, a(n+1) = A000265(o(n)) where o is the ordinal transform of the sequence.

LINKS

Rémy Sigrist, Table of n, a(n) for n = 1..10000

Rémy Sigrist, Logarithmic scatterplot of the first 2^16 terms

EXAMPLE

The first terms, alongside their ordinal transform, are:

n a(n) o(n)

-- ---- ----

1 0 1

2 1 1

3 1 2

4 1 3

5 3 1

6 1 4

7 1 5

8 5 1

9 1 6

10 3 2

PROG

(PARI) o=vector(38); v=0; for (n=1, 80, print1 (v", "); o[1+v]++; v=o[1+v]/2^valuation(o[1+v], 2))

CROSSREFS

KEYWORD

nonn,look

AUTHOR

Rémy Sigrist, Nov 26 2019

STATUS

approved